Airplane



FIG. 1 is a side elevational view of an airplane depicting our new design;

FIG. 2 is a front elevational view;

FIG. 3 is a top plan view;

FIG. 4 is an upper front side perspective view;

FIG. 5 is an upper side perspective view; and

FIG. 6 is an upper rear side perspective view. 

The ornamental design for an airplane, as shown and described. 